What motor do I have? 1988 325

[reelizmpro]

As an FYI, you CAN sneak the cam in and out with the engine in the car without removing the head. The single valve springs are supposedly good to 6000 RPM. I did this back in 96 when I didn't have much money and i parts were expensive. It ran fine. You can also use any Motronic 1.1/1.3 computer 525,380,173 etc, just try to stay away from the 153 (early M1.1). It's all plug and play.

[Stoner Sam23]

I am in the process of building a super eta. Good engine.

[devon.818]

are far as m20's go, you got the good one!

with the i head swap you have tq of the eta but the HP of the i motor. best of both worlds.

and you keep stock compression regardless.

throw some 17# injectors, a performance chip, and some new plugs and wires cap/rotor and have a blast man

[CptnVortex]

As an FYI, you CAN sneak the cam in and out with the engine in the car without removing the head. The single valve springs are supposedly good to 6000 RPM. I did this back in 96 when I didn't have much money and i parts were expensive. It ran fine. You can also use any Motronic 1.1/1.3 computer 525,380,173 etc, just try to stay away from the 153 (early M1.1). It's all plug and play.

Can you elaborate on swapping the Cam with the head installed? I dont really see how you can do this.... dont you need to take the rockers and rocker bars out? I had a hard enough time doing this with the head removed on a work bench!

[irishluder]

are far as m20's go, you got the good one!

with the i head swap you have tq of the eta but the HP of the i motor. best of both worlds.

and you keep stock compression regardless.

throw some 17# injectors, a performance chip, and some new plugs and wires cap/rotor and have a blast man

This is great info guys

Are the 17lb injectors out of the 325i?

[CptnVortex]

This is great info guys

Are the 17lb injectors out of the 325i?

Yes I believe so. Looking around online, you dont need anything more than i Injectors unless going about 20-25HP over stock. (According to Miller Performance).

[reelizmpro]

Can you elaborate on swapping the Cam with the head installed? I dont really see how you can do this.... dont you need to take the rockers and rocker bars out? I had a hard enough time doing this with the head removed on a work bench!

I must say that I didn't personally do it but my buddy (BMW Tech) did so I know it can be done. I believe he had to remove the headlight or radiator for clearance and the rocker arm retainers so you can slide them over. That's the only way I can think of. I don't remember if my engine was in or out of the car when it was done though.

[acolella76]

This is great info guys

Are the 17lb injectors out of the 325i?

They are out of the M50 from an E36 325i.

I must say that I didn't personally do it but my buddy (BMW Tech) did so I know it can be done. I believe he had to remove the headlight or radiator for clearance and the rocker arm retainers so you can slide them over. That's the only way I can think of. I don't remember if my engine was in or out of the car when it was done though.

It is probably possible to get all of that out without removing the head if he was to lift the front of the motor a little bit. Honestly I would just buy a good rebuilt 885 head and throw that on there instead.

[shaferbm]

So were all 87 325's super etas?

[reelizmpro]

88 only